Therefore, study on the deformation and breakage law of upper and down floor of coal layer, the character of formation, each fault factor are the key problem for prevention the water inrush.
因此,对煤层顶底板的变形破坏规律、构造特征以及断层各要素的研究都是防治奥灰岩含水层突水的关键问题。
For a long time, the safe mining of our country's coal resources has been seriously affected by a primary factor which is water inrush from coal seam floor.
长期以来,煤层底板突水一直是严重影响我国煤矿资源安全开采的一个主要因素。
In the course of tunnel construction in karst mountain area, huge karst cave with water is the important factor for karst water and mud inrush disaster.
岩溶山区隧道施工过程中,大型充水溶洞是造成隧道突水突泥事故的重要因素。
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